Skip to main content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

Journal Citation Reports - The Impact Factor and Other Metrics: Eigenfactor & Article Influence

A brief introduction to using JCR for locating and interpreting the impact factor for journals. Included is the Eigenfactor metrics and other aggregate impact factors.

Eigenfactorâ„¢ Score and Article Influenceâ„¢ Score

Eigenfactor™ Metrics, comprising the Eigenfactor Score and Article Influence Score, use JCR citation data to assess the influence of a journal in relation to other journals. These metrics, based on five years of citation activity, consider not just the count of citations but the structure of the citation network. Eigenfactor Metrics are available only for JCR years 2007 and later.

For more information on Eigenfactor™ Metrics, click here.

Here's the Eigenfactor Score and Article Influence Score displayed in Journal Citation Reports for the subject category Pharmacology & Pharmacy. Notice the Article Influence Score is highlighted.


Here is a closer look at the journal Nature Reviews Drug Discovery reported from

500 W. University Avenue : El Paso, TX, 79968-0582 : (915) 747-5672
Copyright | Privacy Policy | Disclaimer
State Reports | UT System | Customer Service Statement | Site Feedback | Required Links |